Q: What are the prime factors of the number 354,154,262?

 A: 2, 7, 11, 19, 17291

Why are those the prime factors of the number 354,154,262?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 354,154,262

354,154,262
Factor Arrows
2177,077,131
Factor Arrows
725,296,733
Factor Arrows
73,613,819
Factor Arrows
11328,529
Factor Arrows
1917,291

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 7, 11, 19, 17291

We can check our work by multiplying all of the prime factors together: 2 x 7 x 7 x 11 x 19 x 17,291 = 354,154,262

This can also be written as 21 x 72 x 111 x 191 x 17,2911 = 354,154,262

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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